Nothing tehincal, what 4x media works best 411s?

memorex dvd-r’s and dvd+r’s burn perfect at 4x, i tried 4x verbatim dvd-r’s but only burn at 2x, even with the new firmware.
what else have you guys tried that burns at 4x?

Best of the best for DVD-R is TY (Fuji).
you can search the DVD test forum for 411s or better yet use your firmware for the search. Read the sticky in the test forum for search tips.